(毕业课程设计光立方.docxVIP

摘 要本设计制作出一个三维立体显示图案的LED光立方。本产品不仅可以像发光二极管点阵一样显示平面的静态或动态画面，还可以显示立体的静态或动态画面，打破了传统的平面显示方案。同时又增加了显示的花样和立体图案显示效果，可以广泛用于传媒信息显示和各种装饰显示，为将来显示技术的进步和发展指导了方向，光立方显示比发光二极管点阵更具有视觉效果，而且画面图案更加非富多彩。本设计是采用AT89S52单片机为核心控制器，八D边沿触发器（三态）74LS573扩展I/O口，完成硬件电路设计。通过软件编程控制数据下载到单片机完成设计图案的显示。软件采用自上而下的模块化设计思想，使系统朝着分布式、小型化方向发展，增强系统的可扩展性和运行的稳定性。 关键词: 52单片机;74HC573锁存器;8*8*8LED显示; ABSTRACTThis design produced a three-dimensional pattern of the LED light cube. This product can not only like a light-emitting diode dot matrix display plane static or dynamic screen can also display three-dimensional static or dynamic images，and to break the traditional program.While increasing the display patterns and three-dimensional effect can be widely used to display and decorative display for future progress and development to guide the direction，light cube display more visual effects than the light-emitting diode dot matrix，and the picture is more rich colorful. With a combination of graphics and characters more perfect display characteristics.The design is AT89S52 MCU core controller,eight D edge flip-flop 74LS574 (tri-state) expansion I/O port completion of the hardware circuit design. Programmed by software to control the data is downloaded to the MCU to complete the designs of the show. This design software is a top-down modular design,the system moving in the direction of distributed，small development,enhance the stability of the systems scalability and running. KEY WORDS: 52single-chip;74HC573latch;8*8*8 3DLED;目录设计要求与方案…………………………………………………………………1 1.1设计目的……………………………………………………………………1 1.2设计要求……………………………………………………………………1 1.3设计思路……………………………………………………………………1 1.4设计的总体要求及方案选择……………………………………………2工作原理………………………………………………………………………3 2.1模块的简介…………………………………………………………………3 2.2 3DLED光立方工作原理……………………………………………………43、方案选择…………………………………………………………………………5 3.1电源的选择…………………………………………………………………5 3.2 3D显示核心控制器…………………………………………………………5 3.3 I/O口扩展芯片的选择……………………………………………………6 3.4 LED发光显示二级管………………………………………………………64、硬件整体设计概述及功能分析…………………………………………………8 4.1 系统概